Politico.com is reporting that Linda McMahon is carrying a three point lead over Chris Murphy in a new survey commissioned by the U.S. Chamber of Commerce.

“In 2010, McMahon appeared in Quinnipiac surveys to come close to Richard Blumenthal, only to be badly beaten on Election Day. Whether things turn out differently this cycle remains to be seen. So far, her spending and tightening polls have prompted Democrats to spend more there than they’d planned.”